Sash-cord coupling



J. A. RYAN.

SASH CORD COUPLING;

APPLICATION FILED MAR.26, 1921.

Patented Aug. 15, 1922.

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JOHN A. RYAN, OF ROCHESTER, NEW YORK.

SASH-CORD COUPLING.

Application filed. March 26, 1921.

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Be it known that 1, JOHN A. RYAN, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Sash-Cord Couplings, of which the following is a specification.

The object of this invention is to provide a new and improved form of coupling which can be readily attached to the ends of the cord and with which one end of the cord can be easily fastened to the sash and the other end to the sash weight.

This and other objects of this invention will be fully illustrated in the drawing, described in the specification and pointed out in the claims at the end thereof.

In the accompanying drawing:

Fig. 1 is a front elevation of a sash weight with the sash cord attached thereto by means of the coupling.

Fig. 2 is a longitudinal cross section of the sash weight and coupling, the section being taken on the line 2 2 of Fig. 1.

Fig. 3 is a detail perspective view of the coupling.

Fig. i is a perspective view of the upper corner of a window sash with a modified form of coupling attached thereto, the window sash being shown in section.

Fig. 5 is a horizontal sectional view of the clamping member of the coupling, the section being taken on the line 5 5 of Fig. 4:.

Fig. 6 is a horizontal sectional view of the coupling, the section being taken on the line 6 6 of Fig. 4.

In the several figures of the drawing, like reference numerals indicate like parts.

Sash cords are ordinarily fastened to sash weights by passing the end of the cord through the eye provided near the upper end of the weight and then forming a knot on the end so that the cord cannot be drawn back through the eye. The weight is then held in place on the end of the cord by the knot that is formed thereon. The other end of the sash cord that is fastened to the side of the sash proper is held in place thereon in a similar manner; that is by means of a knot that is formed on the other end of the cord and then forced into a channel and pocket provided in the side of the sash to prevent its withdrawal therefrom. Both of these connections at the ends of the sash cord necessitate the allowance of an extra Specification of Letters Patent.

Patented Aug. 15, 1922.

Serial No. 455,899.

length of cord from which the knots can be made. The accuracy with which the proper length for the sash cord between the weight and the sash can be estimated or measured, is therefore not veryv great and the cord, after being put in place, is usually found to be either too long or too short and the travel of the sash is interfered with accordingly.

In the present invention, this inaccuracy in the length of the cord connection and the waste of the ends of the cord that is used for making the knot is done away with. A coupling member 1 is used for holding the end of the sash cord 2 to the sash weight 3 and a coupling 4 is used to attach the other end of the sash cord 2 to the sash 5. Each of these coupling members is formed up of sheet metal and for the coupling 1 which holds the sash weight 3 in place on the cord a semi-circular channel 6 is folded up to form a sleeve into which the end of the cord 2 is adapted to engage. This sleeve is provided with an overhanging flange 7 at each side of the channel and at the outer end of each of the flanges 7 a series of teeth are formed which are bent inwardly so as to project toward the inside of the sleeve 6.

The lower end of this coupling member 1 is blanked out and bent up into the form of a spoon having a curved back 8 at the rear and an upwardly projecting pointed flange 9 at each side thereof. The curvature of this lower half of the coupling member and the width thereof is adapted to conform to the wall of the recess 10 of the sash weight 1 in which the eye 11 is formed. The opening in the wall of the recess 10, which forms the eye 11, slants upwardly and the lower end of the coupling member 1 is curved outwardly to make the upper half of the coupling member lie snug against the inside of the recess 12 provided on the other side of the sash weight, into which recess the opening or eye 11 leads.

To attach the coupling member 1 to the weight and the sash cord, the sleeve of the coupling member is first passed through the eye 11 from the side of the recess 10 of the weight. The end of the sash cord is then inserted into the sleeve 6 of the coupling member and the sides and flanges of the sleeve are then squeezed together so that the teeth formed on the outside of the flanges 7 enter into the cord and take a firm hold thereon. The cord is then securely fastened to the coupling member and when the weight 3 is allowed to swing freely on the coupling member, the lower spoon shaped end thereof will lie snugly against the inner Wall of the depression 10 and prevent its withdrawal through the eye 11.

The coupling member 4, which is used to connect the sash cord 2 to the sash 5, has a sleeve 13 that is similar to thesleeve 6 of the coupling member 1 formed thereon, other end of the sash cord is, therefore, attached to the coupling member 4 in the same manner as is described in connection with the coupling member 1. v

The lowerhalf of the coupling member l is formed somewhat differently from that of the coupling member 1 in that the enlarged lower end instead of being formed with a curved back that slants forwardly is formed into a cylinder 14. The outer end of the cylinder 14: projects upwardly so that the extreme upper and outer edge of the cylinder formed in this way forms a hook that is adapted to engage into the pocket 15 formed in the side of the sash The cylinder 14 is hooked into the pocket or recess 15 and the sleeve 4 to which the end of the sash cord is fastened is adapted to lie in the channel 16 leading from the recess 15 to the upper end of thesash. j

1 In this manner, the sash cord 2 is securely fastened to the sash at one end and to the weight at the otherend and in measuring the required length for the cord to connect the weight to the sash, no allowanceneed be made in order to form a knot at each end of the cord for the purpose of connecting the weight and the sash with the cord.

I claim:

1. A coupling for a sash cord comprising an anchor formed by an angularly placed semi-cylindrical flange, an extension of re duced diameter projecting rearwardly and upwardly from said flange centrally thereof, a channel formed by said extension and means for clamping a sash cord into said channel.

2. coupling for a sash cord, comprising an anchor formed by a spoon shaped plate,

The

said spoon shaped plate being inclined forwardly, an extension at the rear of said spoon shaped plate, projecting upwardly, a channel formed by said extension, teeth formed at each side of said channel, said channel and said teeth being adapted to be forced around a sash cord.

3. A coupling for a sash cord, comprising an anchor formed by an angular semi-cylindrical flange, a sleeve forming an extension of said flange and projecting upwardly therefrom, and means on said sleeve to clamp the end of a sash cord into said sleeve.

4:. A coupling for a sash cord, comprising an anchor formed by a flange having a concave front and a convex back, a sleeve formed at one end of said flange, teeth provided on said sleeve, said teeth being adapted to engage into the sash cord to fasten the cord to said anchor.

5. The combination of a sash weight and a coupling member therefor comprising a weight having a curved depression on one side thereof and a vertical opening leading through the center of the top of said weight into the depression formed in the side thereof, a sleeve, teeth formed along the seam of-said sleeve, an outwardly curved neck depending from said sleeve, a semicylindrical flange formed on the end of said neck, said sleeve being adapted to project into the vertical opening in said weight and said neck being adapted to snugly hold said semi-cylindrical flange against the curved wall of the curved depression in said weight, the weight of said sash weight on said coupling member operating to rigidly hold said coupling member in said sash weight.

6. A coupling for a sash cord, comprising an anchor formed by a sleeve, teeth formed on the seam of said sleeve said sleeve being partially cut away near the lower end thereof and being slightly curved outwardly, the curved end of said cut away sleeve being flared out to form an enlarged end thereon.

ture.

JOHN A. RYAN. 

